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SON Headlight Bracket for Suspension Forks for B&M Lights

Customer Reviews (3)
4.7 / 5| Write your review
£10.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Comes supplied with star nut for 1" forks, for fitting to 1 1/8" forks a sperate star nut will be required. We recommend SJSC part 30331.
Product Reviews (3)
Questions & Answers (7) Q & A
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Product Reviews (3)
Overall Product Rating 4.7 / 5
The Most Practical Mounting Option? Good For Rigid Forks As Well
By AndyM
13 Oct 2016
5 / 5
I recommend this product
Consfitting bolt should be a centimetre longer
Prossaves handlebar space
I used this to mount the light on a pair of rigid MTB forks and it seems to work just fine. This seems to me the most practical solution if, like me, handlebar space is at a premium, although I don't know how well it would combine with a bar bag. I have 26-inch wheels on my bike but it looks to me like it should also work fine on a bike with 700c wheels.

Fitting was easy - a tool for fitting a star-fangled nut helps. I have an 1and 1/8 inch steerer and the supplied star-fangled nut fitted just fine. The supplied bolt was only just long enough - a 50mm bolt would have been better.

Very Useful Little Widget!
By Anonymous
08 Oct 2012
4 / 5
I recommend this product
Consonly supplied with star nut to fit 1" steerer
Proseasy to fit, problem solving widget
I bought this to mount a Cateye front light to my fork (required mounting a homemade adaptor to this bracket!). This is a well made bracket that is easy to fit using a star nut setter minus the steerer height guide tube. Mine came supplied with a 1" star nut so I had to buy a 1 1/8 th star nut to fit this to my bike.
Fits My B&M Lumotech Nicely
By Anonymous
09 Feb 2011
5 / 5
I recommend this product
ConsBolt wasn't long onough for my fork
ProsFits easily, Looks neat
An elegant solution for my headlight and I was able to bolt my mudguard on as well.
Questions & Answers (7)
Smaller star nut available?
30 Sep 2019
Any ideas how to get this bracket fit the fork of my bike when the hole under the fork is only about 2/3 inches (15 mm) wide. The star nut included doesn't fit. I tried to look, but couldn't find a smaller star nut in your webstore. Any other ways to lock the bracket in such a small hole?
That is very small and we would not have anything suitable.

Thanks - 01/10/19
Is There an Adaptor Available?
18 Sep 2019
Is there an adaptor that allows the "rubber band" type mounts to be used with this bracket?
Hi there,

Unfortunately, there is no adaptor available that could do that job im afraid.

Interference with full suspension travel
10 Sep 2019
How well does this bracket really work with suspension forks?

I have concerns that it will hit the fork bridge/brace at full fork suspension travel.

Is there really enough clearance to avoid that problem?
You would have to test on your particular fork, many will clear but yes some will hit on full compression.

Thanks - 10/09/19
Is This Suitable For Use With A Schmidt Edelux Ii?
23 Sep 2016
I want to use it with a set of rigid MTB forks and a 26-inch wheel (with 2" tyres). The base of the fork steerer tub is about 4cms above the tyre. It looks like it should work but I thought I'd ask.


This bracket is fine for use with an Edelux. Without having your bike here its hard to say how well it will fit to your forks, but it does sound as though you should be fine.

Loose Star Nut
26 Mar 2015
Hi, I'm trying to mount on a 2008 Dahon Matrix. The supplied star nut flops in the steerer with a very few mm to spare. I don't know AheadSet technology very well. Is this likely a next size up sort of issue, do I just need to buy a bigger size star nut. If so, what is the size supplied (the documentation says it is Aheadset Kralle 1 Zoll, if that helps)

(I'm trying to combine it with 33015SIL to mount a lamp below a bar bag on my suspension hybrid. Looks promising, but for the loose nut...)

It is quite common for forks to be slightly larger lower in the inside of the steerer tube. It may be worth measuring the inside of the forks where the star nut is going to sit to see what size it is. That star nut supplied is around 23mm in diameter to fit 22.2mm tubes, the next size up is around 26.5mm to fit 25.4mm tubes. If your's measures up somewhere in between the two sizes then it is possible to buy the larger size and file it down slightly to help the fit.

How Does This Fit?
26 Aug 2014
The website entry could do with a picture of it installed. How does it fit. I guess maybe it pokes up inside the steerer tube from below, then reaches above the moving arch of the fork? If so, it might be what I want....

Unfortunately this is not something we a photo of when fitted. It does fit in the way that you are describing though, the star nut fits up into the bottom of the forks and then the bracket bolts into that.

Above Bracket.. Fork Suspension Bracket
16 Dec 2013
How heavy is this bracket as I need 2 at this angle for a helmet please , really light weight ,, it's for my son to have on his helmet to play boccia a sport for the disabled and

The bracket on its own weighs 22 grams, with the bolt, star-nut and washer the weight is 40 grams.